Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Werner B. Pfeiffer

Cornwall Bridge, CT: #2 of 3 inventorsTop 70%
Connecticut: #21,355 of 34,797 inventorsTop 65%
Overall (All Time): #3,872,266 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5000717 Toy building component 1991-03-19